Improved apparatus for evaporating saccharine and other liquids



D. HARRIS.

Evaporating Pan.

Patented May 5, 1863.

f E E. I E E :v w- WQ (lm llp m Q. L.

N. PETERS. Pmtoumognpawr, wuhmgmn. llc.

UNITED STATES PATENT OEEICEC DENNIS HARRIS, OF NEW YORK, N. Y.

IMPROVED APPARATUS FOR EVAPORATING SACCHARINE AND OTHER LlQUlDS.'

Specification forming part of Letters Patent No. 38,386, dated May 5, 1863.

To all whom t may concern:

Be it known that I, DENNIS HAREIs, of the city, county, and State of New York, have invented a new and Improved Apparatus or Device for Evaporating the Sirup of Sugar, Molasses, and other Saccharine Juices; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification, in which- Figure l is a vertical section of my invention, taken in the line xtc, Fig. 2; Fig. 2, a Vplan or top view of the same.

Similar letters of reference indicate corresponding parts in the two figures.

This invention consists in the employment or use of rotating disks in connection with a steam-chamber and blowing apparatus, allarranged in such a manner that the sirup may be boiled by steam under pressure and a rapid evaporation produced without having the temperature of the sirup sufficiently high to retard or prevent crystallization and occasion a loss in sugar.

To enable those skilled in the art to fully understand and construct my invention,I will proceed to describe it.

A represents a steam box or chamber, into which steam is admitted through a suitable pipe, a, and b is the steameduction pipe, which is provided with a loaded valve, c, for the purpose of regulating the discharge of the steam and varying the pressure within the box or chamber A as may be required.

B represents a sirup-pan, which is on top of the steam-box A, and within this siruppan there are placed pipes C, which extend all around it in a horizontal position,or nearly so. One or more of these pipes C may be used; but I design to use two at least, one being below the surface of the sirup and one just above its surface, as shown clearly in Fig. l. These pipes O are blow-pipes, and they are perforated all around, as shown clearly in Fig. 2. The blast is forced int-o and through said pipes by means of a bellows, pump, or any suitable mechanical contrivance.

D is a shaft, which extends longitudinally over the top of the pan B, and has a series of circular disks, E, placed upon it. These disks are of such diameter that they will extend down nearly to the bottom of the pan lB. These disks may have smooth or corrugated surfacesthe latter would probably be preferable, as the sirup would adhere to the disks better. These disks are rotated by any proper means, their shaft D being driven through the medium of a belt or gearing.

The operation is as follows: The sirup is heated or boiled by means of the steam in the box A, and the disks E, as they' rotate, carry up the sirup and expose it to the air, they greatly expediting evaporation. The sirup is cooled by the blast injected into it through the lower'pipe C, While the blast which is forced through the upper pipe carries or blows oifthe vapor from the si rup. The blast,

in connection with the rotary disks and steam- A box A. will keep the sirup in a cool state and cause a rapid evaporation, for by that means the sirup may be boiled by steam under pressure. Thus, although a great heat may be employed, the temperature of the sirup is kept down by a rapid evaporation, and crystallization is consesequently not in the least prevented.

The using ofthe steam under pressure is an important feature of the invention. Free steam would be a comparatively slow means to effect the result; but the steam under pressure could not be used unless the radiators and blasts are employed, for it is by the rapid evaporation that the sirup is kept at the proper temperature.

I would remark that, it' necessary, warm-air may be forced through the pipes O. rIhis may be required in cases where the sirup is rather low in temperature.

I do not claim separately any of the parts herein described; but x I do claim as new and desire to secure by Letters Patent- The rotating disks E and blast-pipes C, one or more, in combination with the pan B and steam under pressure, all arranged as and for the purpose set forth.

DENNIS HARRIS.

1Witnesses:

GEO. W. REED, M. S. PARTEIDGE. 

